Thin-Slice Fast Dynamic MRI Multiphasic of Functional Islet Cell Tumor (Report of 3 Cases)_CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY

Authors：

LI Yingchun , SONG Bin , WU Bi , YANG Yang , LIU Jie , YIN Longlin.

Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China;

Corresponding author：

Keywords：

Pancreatic islet cell tumor Magnetic resonance imaging

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【Abstract】ObjectiveTo investigate the value of volumetric interpolated breathhold examination (3DVIBE) MRI sequence in the diagnosis of functional islet cell tumors of the pancreas.
MethodsDedicated MRI scan was performed for 3 patients suspected to have functional islet cell tumors of the pancreas on clinical and laboratory basis. The MRI scan protocol included routine axial T1W and T2W, coronal true fast imaging with steady state procession (TrueFISP) and MRCP, gadoliniumenhanced 3DVIBE dynamic triphasic acquisitions and enhanced 2D GRE T1W scan. The three phases images of 3DVIBE sequence were acquired at 15 s, 40 s and 65 s after injection of contrast agent, corresponding to the early arterial, late arterial and portal venous phase respectively. The imaging features were compared with surgical and pathological findings.
ResultsThe triphasic images of 3DVIBE sequence depicted clearly the morphology of small functional islet cell tumors of the pancreas and reflected accurately the characteristics of tumor blood supply, while other MRI sequences might miss these small lesions.
ConclusionThinslice and fast dynamic MRI sequence, as exemplified by 3DVIBE sequence, is very useful in the detection and characterization of pancreatic functional islet cell tumors.

Citation： LI Yingchun,SONG Bin,WU Bi,YANG Yang,LIU Jie,YIN Longlin.. Thin-Slice Fast Dynamic MRI Multiphasic of Functional Islet Cell Tumor (Report of 3 Cases). CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2006, 13(3): 343-346. doi: Copy

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1. Radiology, 2000; 215(2)∶365.
2. Radiology, 2000; 216(1)∶163.
3. Radiology, 2000; 214(2)∶483.
4. King CM, Reznek RH, Dacie JE, et al. Imaging islet cell tumours [J]. Clin Radiol, 1994; 49(5)∶295.
5. 徐青，黄庆娟. 16例胰岛细胞瘤的CT影像特点分析 [J]. 南京医科大学学报， 2004; 24（1）∶90.
6. 孙巍，陈丽英，范国光，等. 胰岛细胞瘤的双期MSCT表现（附9例报道） [J]. 中国临床医学影像杂志， 2004; 15（1）∶23.
7. Rofsky NM, Lee VS, Laub G, et al. Abdominal MR imaging with a volumetric interpolated breathhold examination [J]. Radiology, 1999; 212(3)∶876.
8. Lee VS, Lavelle MT, Rofsky NM, et al. Hepatic MR imaging with a dynamic contrastenhanced isotropic volumetric interpolated breathhold examination: feasibility, reproducibility, and technical quality [J].
9. 邬颖华，宋彬，刘荣波，等. MRI 3DVIBE序列评价肝脏局灶性病变的价值 [J]. 中国普外基础与临床杂志， 2006; 13(2)∶227.
10. 邓晖，邱士军，李祖国. 异位胰岛细胞瘤一例 [J]. 中华放射学杂志， 2003; 37（9）∶860.
11. 李红玲，周晓东，陈定章，等. 超声和CT诊断胰岛细胞瘤14例 [J]. 第四军医大学学报, 2001; 22（15）∶1361.
12. Ichikawa T, Peterson MS, Federle MP, et al. Islet cell tumor of the pancreas: biphasic CT versus MR imaging in tumor detection [J].
13. Thoeni RF, MuellerLisse UG, Chan R, et al. Detection of small, functional islet cell tumors in the pancreas: selection of MR imaging sequences for optimal sensitivity [J].
14. 程涛，李炜，韩萍. 胰岛细胞瘤的CT表现及鉴别诊断 [J]. 临床放射学杂志， 2002; 21（11）∶869.

CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY

Thin-Slice Fast Dynamic MRI Multiphasic of Functional Islet Cell Tumor (Report of 3 Cases)

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